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Bar Necking Simulation

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Hello everyone,

I have realized the bar necking case from the munual of Comsol. I think I can use this successful case as a basement to realize my consititutive model. But there are lot of errors in the result.

My hardening model is as below. Where the k=400 MPa, sigma0=200 MPa, n=0.2.

I wonder for my hardening model if I can simulate the necking phenomenon using Comsol.


0 Replies Last Post Mar 15, 2021, 9:15 p.m. EDT
COMSOL Moderator

Hello Yongfan Guo

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